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CAIE IGCSE Chemistry Environmental and Health Effects of Air Pollution

Practise linking each atmospheric pollutant to its specific climate, toxicity, respiratory, smog or acid-rain effect without swapping causes.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • link carbon dioxide and methane to enhanced greenhouse warming and climate change
  • link carbon monoxide to toxicity and particulates to respiratory disease or cancer risk
  • link sulfur dioxide and nitrogen oxides to acid rain, with nitrogen oxides also causing smog

10.3.3—Pollutant effects: CO2 and methane question 1

[Maximum number: 1]

The symbols of the elements of Period 3 of the Periodic Table are shown.

Table for Question 10.3.3—Pollutant effects: CO2 and methane question 1 — CAIE IGCSE Chemistry

Answer the following questions about these elements.
Each element may be used once, more than once or not at all.
Write the symbol of an element which:

forms an oxide which leads to acid rain

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